2014/10/15 下午 10:11:33

iphone Programming Glossary: mpmediaitem

http://stackoverflow.com/questions/1656124/mpmediaitems-raw-song-data

raw song data I was wondering how to access an MPMediaItem's raw data. Any ideas iphone iphone sdk 3.0 mpmediapickercontroller.. raw song data I was wondering how to access an MPMediaItem's raw data. Any ideas iphone iphone sdk 3.0 mpmediapickercontroller mpmediaitem share improve this question you can.. you can obtain the media item's data in such way void mediaItemToData Implement in your project the media item picker MPMediaItem curItem musicPlayer.nowPlayingItem NSURL url curItem valueForProperty MPMediaItemPropertyAssetURL AVURLAsset songAsset AVURLAsset..

How to play a song from the itunes library in iphone

http://stackoverflow.com/questions/1665119/how-to-play-a-song-from-the-itunes-library-in-iphone

MPMediaQuery alloc init NSLog @ Logging items from a generic query... NSArray itemsFromGenericQuery everything items MPMediaItem song for song in itemsFromGenericQuery NSString songTitle song valueForProperty MPMediaItemPropertyTitle NSLog @ @ songTitle.. everything items MPMediaItem song for song in itemsFromGenericQuery NSString songTitle song valueForProperty MPMediaItemPropertyTitle NSLog @ @ songTitle assign a playback queue containing all media items on the device myPlayer setQueueWithQuery.. to implement the delegate to store the song into your local variable. Here selectedSongCollection is an instance of MPMediaItemCollection . void mediaPicker MPMediaPickerController mediaPicker didPickMediaItems MPMediaItemCollection mediaItemCollection..

On iPhone: Find out what song is currently playing? (in the iPod music player)

http://stackoverflow.com/questions/1917014/on-iphone-find-out-what-song-is-currently-playing-in-the-ipod-music-player

Has anyone had any experience with this Thanks a bunch iphone objective c music ipod share improve this question MPMediaItem song MPMusicPlayerController iPodMusicPlayer nowPlayingItem NSString title song valueForProperty MPMediaItemPropertyTitle.. MPMediaItem song MPMusicPlayerController iPodMusicPlayer nowPlayingItem NSString title song valueForProperty MPMediaItemPropertyTitle NSString album song valueForProperty MPMediaItemPropertyAlbumTitle NSString artist song valueForProperty MPMediaItemPropertyArtist..

Is it possible to access iPhone/iPod Touch music stats through the SDK?

http://stackoverflow.com/questions/2083117/is-it-possible-to-access-iphone-ipod-touch-music-stats-through-the-sdk

init query addFilterPredicate MPMediaPropertyPredicate predicateWithValue @ Moribund the Squirrel forProperty MPMediaItemPropertyArtist Sets the grouping type for the media query query setGroupingType MPMediaGroupingAlbum NSArray albums query.. the grouping type for the media query query setGroupingType MPMediaGroupingAlbum NSArray albums query collections for MPMediaItemCollection album in albums MPMediaItem representativeItem album representativeItem NSString artistName representativeItem.. query setGroupingType MPMediaGroupingAlbum NSArray albums query collections for MPMediaItemCollection album in albums MPMediaItem representativeItem album representativeItem NSString artistName representativeItem valueForProperty MPMediaItemPropertyArtist..

How can you play music from the iPod app while still receiving remote control events in your app?

http://stackoverflow.com/questions/3191580/how-can-you-play-music-from-the-ipod-app-while-still-receiving-remote-control-ev

access to the iPod library. AVAudioPlayer can be initialized with an asset URL and tracks in the iPod library type MPMediaItem do have a URL property that returns a NSURL instance which the documentation says its explicitly for use with AVAsset objects.. You have to use AVPlayer but not AVAudioPlayer. No idea why that is initialized with the asset URL from the MPMediaItem you got from the library picker or current item in the MPMusicPlayerController or wherever then set the audio session's..

Getting the musical data of an iPod-track

http://stackoverflow.com/questions/3905240/getting-the-musical-data-of-an-ipod-track

myself but according to the documentation these are the steps roughly Create an MPMediaQuery to retrieve one or more MPMediaItem objects from the iPod library. Ask those media items for their URL with MPMediaItem valueForProperty MPMediaItemPropertyAssetURL.. to retrieve one or more MPMediaItem objects from the iPod library. Ask those media items for their URL with MPMediaItem valueForProperty MPMediaItemPropertyAssetURL . Create an AVURLAsset from the URL. Create an instance of AVAssetReader for.. more MPMediaItem objects from the iPod library. Ask those media items for their URL with MPMediaItem valueForProperty MPMediaItemPropertyAssetURL . Create an AVURLAsset from the URL. Create an instance of AVAssetReader for the asset. Create one or more..

Drawing waveform with AVAssetReader

http://stackoverflow.com/questions/5032775/drawing-waveform-with-avassetreader

YES return NSString stringWithFormat @ @ audio assetFolderRoot objectAtIndex 0 NSString cachedAudioPictogramPathForMPMediaItem MPMediaItem item NSString assetFolder self class assetCacheFolder NSNumber libraryId item valueForProperty MPMediaItemPropertyPersistentID.. NSString stringWithFormat @ @ audio assetFolderRoot objectAtIndex 0 NSString cachedAudioPictogramPathForMPMediaItem MPMediaItem item NSString assetFolder self class assetCacheFolder NSNumber libraryId item valueForProperty MPMediaItemPropertyPersistentID.. MPMediaItem item NSString assetFolder self class assetCacheFolder NSNumber libraryId item valueForProperty MPMediaItemPropertyPersistentID NSString assetPictogramFilename NSString stringWithFormat @ asset_ @. @ libraryId imgExt return NSString..

Using MPMediaItems with AVAudioPlayer

http://stackoverflow.com/questions/5222464/using-mpmediaitems-with-avaudioplayer

MPMediaItems with AVAudioPlayer Is it possible to pick media items using MPMediaPickerController and then load them into an AVAudioPlayer.. are examples for MPMediaPlayer and AVPlayer void mediaPicker MPMediaPickerController mediaPicker didPickMediaItems MPMediaItemCollection collection MPMediaItem item collection items objectAtIndex 0 NSURL url item valueForProperty MPMediaItemPropertyAssetURL.. and AVPlayer void mediaPicker MPMediaPickerController mediaPicker didPickMediaItems MPMediaItemCollection collection MPMediaItem item collection items objectAtIndex 0 NSURL url item valueForProperty MPMediaItemPropertyAssetURL self dismissModalViewControllerAnimated..

Error getting artwork for current song

http://stackoverflow.com/questions/6346079/error-getting-artwork-for-current-song

because I left out the if artwork error handling. Eheh. This method void handleNowPlayingItemChanged id notification MPMediaItem item self.musicPlayer.nowPlayingItem CGSize albumCoverSize self.albumCover.bounds.size MPMediaItemArtwork artwork item.. id notification MPMediaItem item self.musicPlayer.nowPlayingItem CGSize albumCoverSize self.albumCover.bounds.size MPMediaItemArtwork artwork item valueForProperty MPMediaItemPropertyArtwork if artwork self.albumCover.image artwork imageWithSize.. CGSize albumCoverSize self.albumCover.bounds.size MPMediaItemArtwork artwork item valueForProperty MPMediaItemPropertyArtwork if artwork self.albumCover.image artwork imageWithSize albumCoverSize else self.albumCover.image nil Explodes..

iPhone sdk - accessing current song information through an app

http://stackoverflow.com/questions/741847/iphone-sdk-accessing-current-song-information-through-an-app

Application crashed while importing songs from Ipod library in Iphone for iOs 5.0

http://stackoverflow.com/questions/8077725/application-crashed-while-importing-songs-from-ipod-library-in-iphone-for-ios-5

mark MPMediaPickerController delegate methods void mediaPicker MPMediaPickerController mediaPicker didPickMediaItems MPMediaItemCollection mediaItemCollection We need to dismiss the picker self dismissModalViewControllerAnimated YES Assign the selected.. self dismissModalViewControllerAnimated YES #pragma mark Sace Item Collection to documentsDirectory void saveMediaItem MPMediaItemCollection mediaItemCollection for int i 0 i mediaItemCollection.items count i self exportAssetAsSourceFormat mediaItemCollection.. items objectAtIndex i NSLog @ for loop d i NSArray itemsArray1 appDelegate.mediaItemCollection1.items MPMediaItemCollection mediaItemCollection2 if itemsArray1 count 0 mediaItemCollection2 self collectionByAppendingCollection mediaItemCollection..

iOS Stream Audio from one iOS Device to Another

http://stackoverflow.com/questions/8357514/ios-stream-audio-from-one-ios-device-to-another

iTunes library and shove it into an AVAsset void mediaPicker MPMediaPickerController mediaPicker didPickMediaItems MPMediaItemCollection mediaItemCollection NSArray arr mediaItemCollection.items MPMediaItem song arr objectAtIndex 0 NSData songData.. mediaPicker didPickMediaItems MPMediaItemCollection mediaItemCollection NSArray arr mediaItemCollection.items MPMediaItem song arr objectAtIndex 0 NSData songData NSData dataWithContentsOfURL song valueForProperty MPMediaItemPropertyAssetURL.. MPMediaItem song arr objectAtIndex 0 NSData songData NSData dataWithContentsOfURL song valueForProperty MPMediaItemPropertyAssetURL Then I have this Game Center method for receiving data void match GKMatch match didReceiveData NSData data..